tert-butyl 2-(4-chloro-3-(2-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxamido)benzamido)-2-phenylethylcarbamate                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,4-二氧六环                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以89.9%的产率得到N-(5-(2-amino-1-phenylethylcarbamoyl)-2-chlorophenyl)-2-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxamide hydrochloride